To better stabilize the forward-facing camera, we utilized a carrier apparatus that is mounted onto the top of the glasses using screws. We chose to use a wood carrier apparatus, although plastic would be a suitable material as well. This change eliminated the zip tie mounting.

We changed the eye-tracking camera's mounting to a through-hole mounting, drilled directly into the glasses. The new mounting increased the resolution of the eye-tracking camera, since the lens is closer to the eye and the image is no longer distorted by the plastic lens of the safety glasses. The blue Loctite Fun Tak mounting putty holds the camera more securely.

For additional usability, we changed the adjustable strap in the back of the glasses to a shock cord strap.